AttorneyMark Blair Holmes● 188 total views
MH

Mark Blair Holmes

Council on State Taxation·Washington, DC·30 years licensed

Mark Blair Holmes is a lawyer in Washington, DC who works for Council on State Taxation. Practice areas include Taxation. Court admissions include US Tax Court. Licensed in Texas since 1995. Graduated from Georgetown University in 1996.

Claim profileContact attorney
Law school
Class of 1996
Bar admission
1995
State Bar of TX · No. 793967
Office
122 C Street NW, Suite 330
Washington, DC 20001
Disciplinary
None on record
Clean since admission
MH

Mark Blair Holmes

Council on State Taxation
Washington, DC·30 years licensed
Claim profileContact attorney

Mark Blair Holmes is a lawyer in Washington, DC who works for Council on State Taxation. Practice areas include Taxation. Court admissions include US Tax Court. Licensed in Texas since 1995. Graduated from Georgetown University in 1996.

Law school
Bar admission
1995
State Bar of TX · No. 793967
Office
122 C Street NW, Suite 330
Washington, DC 20001
Disciplinary
None on record
Clean since admission
Career history

2 observed firms

Based on State Bar of Texas snapshots — each row is a firm the attorney was registered with at one of our quarterly pulls.

  1. Lennox InternationalAS OF MAY 2023
    Non-Law-Related Employment · Richardson, TX
  2. Council on State TaxationAPR 2026 — PRESENT
    Non-Law-Related Employment · Washington, DC
Case data

Case data

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Practice & jurisdiction
Practice areas
  • Taxation
Courts admitted
  • US Tax Court
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Last refreshed Jun 2026